Agitator



Oct. 7. 1924. 1,510,514

, N. WALKER Original Filed Dec. 10. L923 2 Sheets-she 1 fizvemiar Team W 1,510,514 Oct. 7 I 9 WALKER AGITATOR Original Filed Dec. 10. 1921 2 Sheets-Sheet 2 AGQQLM? jVba/Z M Patented Oct. 7, 1924.

UNITED STATES NOAH WALKER, F PHILADELPHIA, PENNSYLVANIA. j

AGITATOR.

Original application filed December 10, 1921, Serial No. 521,557. Divided and this application filed March 13, 1924. Serial No. 698,919. I

To all whom it may concern:

Be it known that I, NOAH TVALKER, a citi- Zen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Agitators, of which the following is a specification.

This application includes subject matter and claims therefor divided out of an application for United States Patent filed by me on the tenth day of December, 1921, Serial No. 521,557.

One object of my present invention is to provide improved means for effecting agitation and movement of liquids when propellers are used as the agitating means.

Another object is to make my invention in such manner as to be economical to the user. i

These objects, and other advantageous ends which will be set forth hereinafter, I attain in the following manner, reference being had to the accompanying drawings in which Figure 1 is an elevational view partly in section, illustrating my invention,

Figure 2 is a fragmentary sectional plan view showing certain of the parts of my invention, v

Figure 3 is a sectional view taken on the line 33 of Figure 2,

Figure 4 is a perspective view of the lower end of one of the propeller shafts,

Figure 5 is a perspective view of a bushing which is preferably employed for the lower ends of the propeller shafts,

Figure 6 is a fragmentary sectional view taken on the line 66 of Figure 3,

Figure 7 is a top plan view of one of the propellers, and

Figure 8 is a sectional elevation showing two sleeves above and below the partition forming ducts for the propellers.

Referring to the drawings, I have illustrated my invention in connection with a container 12 having a horizontal partition or board 13. This container may be of any desired construction for holding liquid up to a level above the board; it being one of the objects of my invention to provide the.

apparatus for any purpose or condition to efiect the flow of liquid in an alternating manner upward and downward through the holes 14 and 14 in the board 13 and through sleeves aligned with said holes as will hereinafter be described.

gears. 33 and 34 secured thereto for effecting the rotation thereof, said bevel gears, as shown in the drawings, meshing with other bevel gears 31 and 32respectively. These bevel gears 31 and 32 are secured to a trans verse shaft upon which is secured a gear wheel 35 which can be operated by any suitable means.

In carrying out my present invention, the propeller shafts 29 and 30 have blade propellers 60 secured thereto, said propellers being located to extend within the respective holes '14 and 14 of the a board 13. Sleeves or rings 61are secured to the lower surface of the partition '13; the sleeves being respectively in axial alignment with the holes 1 1 and 1 1*. Each of these sleeves 61 has a central collar 62 which is secured by radial arms 63 which project into the sleeve from the inner surface thereof.

The collars 62 have angular holes into which fit angular projections 64 of bushings 65, said bushings having top flanges 66 adapted to rest upon the upper edges of the collars 62. The bush-ings have central cylindrical holes 67 extending therethrough adapted to receive and form bearings for cylindrical end portions 68 of the propeller shafts 29 and 30.

The propeller shafts have, above the parts 68, angular portions 69 which fit into angular holes 70 in the propellers 60. The lower end surfaces 71 of the shaft portions 69 are adapted to rest upon the upper surfaces of the flanges 66 of the bushings 65. The portions of the propeller shafts immediately above the parts 69 are preferably made circular in cross-section so as to provide shoulders 72 which abut the upper surfaces 73 of the hubs of the propellers. In this manner a secure bearing is provided for the lower ends of the propeller shafts and a 7 direct lock is produced between the propeller shafts and the propellers. Furthermore, by

the operation of the device and at the same.

time there will be practically no lost motion between the propeller shafts and the propellers. Further than this, if the bushing; holes 67 andparts 68 of the propeller shafts become worn, the bushings 65 can be quickly removed and other bushingswith' holes 67 fitting the worn parts 68 of the propeller shafts can be inserted Thus the user of the machine will not be apt to allow the machine to-.be run with exceptionally worn parts which Would-otherwise ruinthe bearings in the. agitatingvhead. This is true for the reasonthat the user of the machine knowing that it is an easy matter to substitute new bushings 65 will do so rather than take the chance of'the entire bearing structure being ruined by continuing the use of the machine with worn lower bearings.

In Figure 8, I have shown sleeves 61 above the partition 13 inaddition to the sleeves 61 below the partition.

By the use of the sleeves relatively to the holes in the partition, extended ducts are produced for the liquid with the propellers located in the ducts thus allowing movement ofthe liquid through the ducts without wide-spreading of, said liquid adjacent the partition. This allows the liquid to be moved in either direction through the ducts according to the direction of rotation ofthe propellers and propeller shafts.

The structure can be readily manuitacture-d and in view of the arrangement illustrated and described, the shafts and pro pellers can be kept in proper alignment avoiding undue wear and, also avoiding; injury to the, actuating'head.

Having thus describ edmy invention, what I claim as new and desire to secure by Letters Patent is:

l. Agitating apparatus of the character described, including a propeller shaft; a head structure including a bearing for the upper part of the propeller shaft; a partition having a hole; a supporting sleeve in registry with said hole and including a collar provided with an angular hole; abushing having an angular portion remova-bly fitting said hole to allow the bushing to be readily removed, when worn and a-n other bushing to be substituted in said angula-r hole; and apropelleron said shaft above said bushing, said shaft below said head bearing having a part rotatably fitting within said bushing whereby the propeller and shaft are prevented from lateral or swingingmovement during op erationand whereby rapid wearing of the head bearing is prevented.

2. Agitating apparatus of the character described, including a propeller shaft; a partition having a hole; sleeves secured above and below the partition and having their passages in. alignment with said hole, one of said sleeves having a free open endeX- tending to a position above thepartition. the other sleeve having a lower free end extending to a position below said partition whereby saidvhol'e in the partition and passages of the sleeves together "form a continuous duct for the liquid to be agitated; a propeller insaid duct betWeensa-id' free ends of the sleeves; and a bearing for said shaft-positioned to preventlateral movement of the propeller with said duct.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

NOAH WALKER. Witnesses:

T-IERMAN C. HORN, RAE NEWMARK. 

